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Bonus Only Slot

Bonus Only is a modern slot developed by the Golden Rock Studios. The fascinating thing about this slot is that it has no symbols that pay. In essence, it has no base game in it. It only features Bonus rounds only. Yep, that understands the name of the game. It was released on 16/05/2022 and looks interesting and unique to play. Wanna know more about it? Keep reading our Bonus Only slot review!

Bonus Only Free Play

Bonus Only logo
Golden Rock Studios Release Date: 16.05.2022
Rating by Fabio Duarte
User’s Rating:
Bonus Only
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General information about Bonus Only slot

Release Date:
Max. win:
Bonus game:
Free spins:
Scatter Symbol:
Wild symbol:
Symbol Stacked:
Jackpot Game:
Slot lines:
Slot reels:
Stakes range (€/£/$):
0.09 to 180
Slot Theme:

How to Play

Register at an online casino and add your deposit there. Search for Bonus Only slot game. Then follow the below-mentioned steps:

  • Load the game and click on the triple bar option
  • Check out the game rules here
  • On the main game screen page, set the number of autoplay spins
  • Adjust the bet amount per spin and start the game

Bonus Only is a 3x3 reels slot that has 3 paylines. Each of these 3 lines represents a specific bonus round. The game is accessible from €0.09 to €180 per spin. So, all the players, including low-budget and high rollers, get to access and play it.

Bonus Only RTP and Volatility

Bonus Only slot game has an RTP of 96.21% and has a low variance.
We are delighted with the combination of the RTP rate, which goes above the industry average and the low variance that gives you frequent and small wins. This slot might be ideal especially for beginners.



Bonus Only is developed like a classic slot game featuring the 3x3 reels and a spin handle. Whenever you click on the spin option to play, the handle attached to the slot moves, mimicking an old-school slot machine. All this takes place on the gaming screen. But the bonus round bring a new 3D twist to it.

We liked the aesthetics of the game, which look super on all devices. The game music is stylish and mod.

As mentioned earlier, there is no base game in the game. So, you will not find many symbols on the reels. There are a few selective ones only. The most common symbol is a rhombus-shaped pink gem. Other than this, you will see the bonus symbols which trigger the bonus rounds. The pink gem is there to fill the void on the reels and has no actual purpose in the game. It does not pay, no matter how it lands.

Bonus Only
Bonus Only Slot - Paytable

Mobile Compatibility

Mobile Compatibility

Bonus Only slot is absolutely compatible with various mobile devices. You can access it on your Android, iOS, or Windows devices according to your convenience. It works best on browsers like Chrome, Firefox, Microsoft Edge, Opera, and Safari. Just login to your online casino account on any of these browsers, search the Bonus Only slot game and start playing it.

About Golden Rock Studios

Golden Rock Studios is a passionate company that designs and builds wonderful games. They aim and develop top quality and high-performing games targeting the requirement of the players. These games are produced with spectacular artwork, unique elements, creative math, and other important mechanics.

Golden Rock Studios has some of the top games that you can try. These include RaRaRa, Star Gods, Book of Inti, Book of Heroes, Higher Forces, and 6 Jewels.

Bonus Rounds & Free Spins

Bonus Rounds

There are three major bonus symbols in the game. These include Vegas, Macau, and Monte Carlo. You have to land 3 same symbols on the reels to trigger their respective features. However, you cannot just land them anywhere on the reels. There is a specific pattern to follow here.

  • On Line 1 (top-horizontal): 3 Vegas symbols
  • On Line 2 (middle-horizontal): 3 Macau symbols
  • On Line 3 (bottom row): 3 Monte Carlo symbols

If you land it in this pattern, you can trigger bonus rounds. There is also a chance of activating multiple bonus rounds simultaneously. Also, if you land 2 same symbols on any of the 2 reels, a respin on the third reel gives you a chance to land the same symbol. So, with 3 same symbols on a line, you can trigger the bonus round. Each bonus round begins with 2 dice rolls. There is also a fourth symbol of 2 red dice. If this lands on the third position of any reel, you receive 4 dice rolls for that particular bonus round.

Once the bonus round is activated, you will be taken to a new game board. You play with two six-sided dice. When the dice are rolled and the total value obtained, you use the value to move in a clockwise direction on the board. Now, if both the dice show the same value when rolled, you receive an additional dice roll opportunity.

The rules of the bonus rounds are the same for all the bonus features. However, each round comes with different laps with varying multipliers

Vegas: The Vegas bonus round is like the basic feature of the game. It has the following multipliers:

  • Lap 1: 1x to 5x
  • Lap 2: 6x to 10x
  • Lap 3: 16x to 20x
  • Lap 4: 36x to 40x

Macau: Macau forms the second tier of the bonus round and gives you better multipliers compared to Vegas.

  • Lap 1: 2x to 10x
  • Lap 2: 12x to 20x
  • Lap 3: 32x to 40x
  • Lap 4: 72x to 80x

Monte Carlo: This is the top tier of the game. You will be lucky if you trigger these bonus rounds. It offers you higher multipliers in the following manner:

  • Lap 1: 5x to 50x
  • Lap 2: 55x to 100x
  • Lap 3: 155x to 200x
  • Lap 4: 355x to 400x

The bonus payout is calculated based on the winning values from the board and multiplied by the total stake. Further, the multiplier value of the bonus round and corresponding lap increases as you move ahead in the board game. You get 3 particular corner sections on the board that give out no productive value if you land on them. The board also has 8 mystery sections. When you land on it, you get a mystery feature to select from. These sections come with 4 cards, and you can choose one of them as a reward:

  1. Move 3 spaces anti-clockwise
  2. Move 10 spaces clockwise
  3. Get 1 additional dice roll
  4. Added multiplier from 1x to 10x

The bonus round completes when there are no dice rolls left to play. All the winnings earned during the round are collected to pay the player. Each bonus feature has a maximum winning limit:

  • Vegas: 250x
  • Macau: 500x
  • Monte Carlo: 1,000x
Bonus Only Slot - Bonus Round

Bonus Only Demo Play

Not sure how to play the Bonus Only slot? How about you try it for free first in the demo version? Yes, we have included the demo version of this game on this page. Access the game for free, learn all its features and then play it for real money!

Max Win

Bonus Only slot has a maximum winning capacity of 1,750x the stake.

Since there is no base game, you can only grab the max wins through the bonus rounds. There is no particular round that will earn you 1,750x the stake entirely. However, combining these different rounds can help you land the entire amount. We suggest you watch out for the Monet Carlo bonus round. It is the highest paying round giving up to 1,000x your bet.

Overall Rating


Bonus Only is surely an interesting game, and we appreciate Golden Rock Studios trying something new. There is no base game or regular symbols to pay. But trust us, you won’t miss them at all. The bonus features make up for all the entertainment and profit in the game. Also, the RTP of the game goes above average, up to 96.21%. You stand a chance to win to a maximum of 1,750x the stake. All in all, we enjoyed the slot thoroughly and recommend it to our readers!

Three different Bonus Features
The Bonus round has an in-game board feature which makes it entertaining too
Good for newbies
No Bonus buy


What are the best elements in the game?

There are 3 bonus elements in the game: Vegas, Macau, and Monte Carlo. These are profitable and thoroughly entertaining.

What are the maximum wins of the Bonus Only game?

Bonus Only can produce max wins up to 1,750x the stake.

What are the minimum and maximum stake values per spin?

You can access it from €0.09 to €180 per spin.

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.
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Overall rating

Based on 2 reviews

Sloto Toto own avatar
Sloto Toto
6 lvl Superstar
Winning: €5
Multiplier: x10
A classic slot, or I’d even call in an emulator of classic slot. It looks like some retro installation from the casino floor.
The gameplay, though, is very unordinary, as there you can get winnings there only via 3 different bonus games. Each happen on a separate board with multiplier sections and dices. You can have a chance to get a really big multiplier during bonus rounds. The good new is that you will be triggering bonuses pretty often.
All in all, a decent and not a boring classic slot.
slotshunter own avatar
5 lvl Spinner
Winning: €6
Multiplier: x76
I've thought this is kind of a joke, but seriously the slot literally has no base game with payouts respectively. You spin 3 reels to land one of three bonus games. Each bonus round offers different multipliers. The one with the highest multipliers is Monte Carlo and I did manage to trigger it. The max multiplier was x25. The slot appeals to me bcs it happens often you play the slot just to trigger a bonus game and here is time to enjoy 4-5 bonus rounds per 100 spins:)